Answer:
The command to create a compressed archive (archive1.tar.gz) is

Explanation:
The explanation for the above command is
The general command to create a compressed archive is
tar -czvf name-of-archive.tar.gz /path/to/directory-or-files
Here, the terms are as follows:
-c : Creates an archive
-z : Compress the archive with gzip.
-v : This is known as verbose. This is an optional command and it displays the progress on terminal command. Without this the progress is not displayed on terminal command.
-f : Allows to specify the file name of the archive.
Here, if we want to archive multiple files, we provide the command the names of multiple files or directories of the files also can be used.
So, the command 
creates a compressed archive - archive1.tar.gz of files test1, test2 and test3.
Answer:
#include <stdio.h>
#include <string.h>
int main(){
char number[100];
printf("Number: ");
scanf("%s", number);
int sum = 0;
for(int i =0;i<strlen(number);i++){
sum+= number[i] - '0';
}
printf("Sum: %d",sum);
return 0;
}
Explanation:
This declares a c string of 100 characters
char number[100];
This prompts user for input
printf("Number: ");
This gets user input
scanf("%s", number);
This initializes sum to 0
int sum = 0;
This iterates through the input string
for(int i =0;i<strlen(number);i++){
This adds individual digits
sum+= number[i] - '0';
}
This prints the calculated sum
printf("Sum: %d",sum);
return 0;
Answer:
Risk response control uses methods such as mitigate, avoidance, shift, actively accept, and passively accept.
Explanation:
Risk Response Control refers to the procedure of evaluating residual risks, detecting new risks, guaranteeing the execution of risk plans, and assessing the success of the plans in decreasing risk is known as risk response control. Whereby the risk response control techniques include acceptance, avoidance, transfer, and mitigation
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